38CrA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 38CrA

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GBT 38CrA

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This page is mainly introduced the 38CrA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 38CrA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
38CrA
  • Steel Garde:38CrA
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
ML38CrA GBT China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 391~961 σb/MPa
Yield Strength 226 σ 0.2 ≥/MPa
Elongation 86 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 733~542 -
HRC 30 -

Physical Properties

Thermal expansion 97-55 e-6/K
Thermal conductivity 37-42 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0333-0009 째C
Density 4467-3667 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

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Size Availability

Steel Grade Specification Processing range(mm)
38CrA Special Alloy Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download